PartsTable
Technical Data Sheet

A1/8 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

A1/8: CUP,TAPERED ROLLER BEARING.

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: RUBBER, part_name_assigned_by_controlling_agency: MASK ANESTHESIA SIZE 3 ADULT 10S. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-071-7890, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ A1/8
NSN: 4730-00-071-7890
NIINs: 000717890, 001003000, 001252764, 001385127, 001731118, 001897932, 001940510, 002184373, 002214852, 002648955, 003487652, 003577092, 004218943, 004259397, 004463596, 004821404, 007152043, 007379590, 008840314, 010445286, 011134200, 012119917, 012236649, 012403164, 012715866, 013590202, 016097603
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 05657 — EMHART INDUSTRIES INC CORBIN HOSE CLAMP HARDWARE DIV (USA)
SPECIFICATIONS
materialRUBBER
size_designation3
special_featuresUSED TO DELIVER ANESTHETIC AGENTS; MADE OF CONDUCTIVE RUBBER MATERIAL; ANESTHESIA MASK WITH HOOK RING; SIZE 3 ADULT (YELLOW); BOX OF 10
part_name_assigned_by_controlling_agencyMASK ANESTHESIA SIZE 3 ADULT 10S
NSN4730-00-071-7890
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A1/8 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FASTENING DEVICE TYPE: SPRING TENSION
•
STYLE DESIGNATOR: WIRE
•
SPECIFICATION/STANDARD DATA: 81348-WW-C-440 GOVERNMENT SPECIFICATION AND 96906-MS39326 GOVERNMENT STANDARD
•
NONDEFINITIVE SPEC/STD DATA: E TYPE AND 1A TABLE A
•
INSIDE DIAMETER: 1.100 INCHES MINIMUM AND 1.150 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL COMP 1080 OVERALL
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS
FASTENING DEVICE TYPESPRING TENSION
STYLE DESIGNATORWIRE
OVERALL WIDTH0.375 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA81348-WW-C-440 GOVERNMENT SPECIFICATION AND 96906-MS39326 GOVERNMENT STANDARD
NONDEFINITIVE SPEC/STD DATAE TYPE AND 1A TABLE A
INSIDE DIAMETER1.100 INCHES MINIMUM AND 1.150 INCHES MAXIMUM IN
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL COMP 1080 OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
J1508, TYPE E, SIZE-18Reference document
Same NSN cross-reference
Reference document — Secondary reference
5342PL0820650Reference document
Same NSN cross-reference
Reference document — Informative reference only
J1508Reference document
Same NSN cross-reference
Reference document — Secondary reference
WW-C-440Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS39326-18Reference document
Same NSN cross-reference
Reference document — Secondary reference
A-A-52506Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
Ready to buy A1/8?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A1/8?
A1/8 is a CUP,TAPERED ROLLER BEARING. It is classified as a MRO (MRO_GENERAL).
What parts can replace A1/8?
There are 7 known substitutes for A1/8: J1508, TYPE E, SIZE-18, 5342PL0820650, J1508 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1/8?
A1/8 is cataloged in the U.S. Government catalog under NSN 4730-00-071-7890. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A1/8

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.